Bonus accounting follows the matching principle: the expense belongs in the period the employee earned it, not the period you cut the check. A bonus earned in Q4 2025 but paid in January 2026 sits on the 2025 income statement and balance sheet for a calendar-year company. Get the timing wrong and you distort reported income, risk loan covenant violations, and may lose the tax deduction if payment slips past a hard IRS cutoff.
Classify the Bonus Before You Book Anything
Classification controls when the expense hits your books, so start there. The label on the offer letter doesn’t decide the question. What matters is whether the employee had reason to expect payment.
Discretionary Bonuses
A discretionary bonus is one where management retains sole control over both whether to pay and how much, right up until the decision is made. No prior promise, formula, or established pattern creates an expectation. You do not accrue during the performance period because no obligation exists until management approves the amount and communicates it. Expense recognition happens at that point or at cash disbursement, whichever comes first.
Announcing in January that a year-end bonus will be paid based on profitability abandons discretion over the fact of payment. Tying the calculation to a formula abandons discretion over the amount. Either move converts the bonus into a non-discretionary obligation no matter what the paperwork calls it.1eCFR. 29 CFR 778.211 – Discretionary Bonuses
Non-Discretionary and Performance-Based Bonuses
Any bonus paid under a prior agreement, promise, or announced criteria is non-discretionary. Sales targets, attendance records, production volume, profitability triggers all fall here. The obligation begins accruing when the employee starts working toward the goal, because a constructive obligation exists from that point.
The expense spreads over the performance period to match the cost to the revenue the employee helped generate. A sales bonus covering the full fiscal year accrues at roughly one-twelfth of the estimated payout each month. This is where most companies stumble, because the final figure is often uncertain until after the period closes.
Sign-On and Retention Bonuses
A sign-on bonus tied to a required service period isn’t expensed on day one. Record it as a prepaid asset and amortize to compensation expense over the required service period. If the employee leaves after six months of a two-year commitment, the unamortized balance becomes a receivable when the agreement includes a clawback, or gets written off to compensation expense when it doesn’t.
Retention bonuses work the same way. A $50,000 retention bonus covering 24 months puts roughly $2,083 into compensation expense each month. When a clawback triggers and the employee repays a portion, you reverse the corresponding previously recognized expense.
When to Record the Accrual
You record a bonus liability when four conditions are met: the obligation stems from services the employee already performed, the rights vest or accumulate, payment is probable, and the amount can be reasonably estimated. For a standard year-end performance bonus, all four are typically satisfied by December 31, even if the exact figure is still being finalized.
If payment is probable but a single number isn’t clear, use the most likely amount within the estimated range. If no single amount is more likely than another, accrue the low end of the range. This conservative treatment comes from the same loss-contingency framework governing other uncertain liabilities, and it prevents you from ignoring an obligation just because the math isn’t final.
At period close, debit Compensation Expense and credit Accrued Compensation Payable for the gross bonus. The employer’s share of payroll taxes is a separate expense in the same period: debit Payroll Tax Expense, credit Payroll Taxes Payable.
When the final bonus differs from your accrual, the difference flows through Compensation Expense in the payment period. A $500 shortfall becomes an additional $500 expense; a $500 overestimate reduces expense. The adjustment lands in the payment period, not the original accrual period, because the original estimate reflected the best information available at the time.
The Full Journal Entry Lifecycle
Three entries cover the bonus from accrual to tax remittance. The illustration below uses a $10,000 gross performance bonus with an estimated $1,000 employer tax burden and $3,000 in employee withholdings.
Entry 1: Year-End Accrual
This entry recognizes the expense in the period earned, before cash moves.
- Debit Compensation Expense $10,000 (the gross bonus)
- Debit Payroll Tax Expense $1,000 (the employer’s FICA and unemployment share)
- Credit Accrued Compensation Payable $10,000 (the gross amount owed to the employee)
- Credit Payroll Taxes Payable $1,000 (the employer’s tax obligation)
The income statement now reflects the full $11,000 cost, and the balance sheet shows $11,000 in matching current liabilities.
Entry 2: Paying the Bonus
Cutting the check clears the accrued liability and records the withholdings.
- Debit Accrued Compensation Payable $10,000
- Credit Cash $7,000 (net amount the employee receives)
- Credit Payroll Taxes Payable $3,000 (federal income tax, Social Security, and Medicare withheld from the employee)
Payroll Taxes Payable now carries a $4,000 balance: $1,000 employer share plus $3,000 withheld from the employee. That’s the total owed to the government.
Entry 3: Remitting Taxes
Depositing the taxes clears the remaining liability.
- Debit Payroll Taxes Payable $4,000
- Credit Cash $4,000
After this entry, all bonus-related accounts net to zero except the expenses already on the income statement. Any lingering balance in Payroll Taxes Payable signals a recording error.
Payroll Taxes and Withholding on Bonuses
The IRS treats bonuses as supplemental wages, triggering withholding rules that differ from regular payroll. You have two distinct obligations: amounts withheld from the employee and the matching taxes the company owes on top.
Federal Income Tax Withholding
For supplemental wages up to $1 million in a calendar year, you can either withhold federal income tax at a flat 22% or combine the bonus with the employee’s most recent regular pay and use the aggregate method with the employee’s W-4. Once supplemental wages exceed $1 million in the year, the excess must be withheld at 37%, regardless of the W-4.2Internal Revenue Service. Publication 15 (2026), (Circular E), Employer’s Tax Guide
FICA, FUTA, and SUTA
Both the employee and employer owe 6.2% Social Security on wages up to $184,500 in 2026, plus 1.45% Medicare on all wages with no cap.3Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates When a bonus pushes year-to-date earnings past the $184,500 Social Security wage base, withhold Social Security only on the portion below the ceiling.4Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet
An additional 0.9% Medicare tax applies to employee wages exceeding $200,000 in the calendar year. It’s employee-only; the employer doesn’t match. You must begin withholding once the employee crosses $200,000, even if the employee’s actual liability differs based on filing status.5Internal Revenue Service. Questions and Answers for the Additional Medicare Tax
FUTA applies to the first $7,000 of each employee’s wages at a gross rate of 6.0%, reduced to an effective 0.6% ($42 per employee) with the standard state unemployment credit of up to 5.4%.6Internal Revenue Service. Topic No. 759, Form 940, Employers Annual Federal Unemployment (FUTA) Tax Return – Filing and Deposit Requirements For most employees receiving bonuses later in the year, regular wages already exceed the $7,000 base, so the bonus adds no FUTA cost. State unemployment wage bases vary widely, ranging from $7,000 to over $78,000 depending on the state. Check your state’s base before assuming the bonus is in the clear, especially for mid-year hires.
The 2.5-Month Rule for the Tax Deduction
Recording the bonus expense on your financial statements is one thing. Claiming the tax deduction is another, and this is where companies lose money.
Accrual-method taxpayers deduct under the “all events test”: the fact of the liability must be established, the amount must be determinable with reasonable accuracy, and economic performance must have occurred.7Office of the Law Revision Counsel. 26 USC 461 – General Rule for Taxable Year of Deduction For bonuses, economic performance generally means the employee rendered the services. But there’s a catch.
Under Treasury regulations, a bonus stays deductible in the year earned only if it’s paid within 2.5 months after the close of the employer’s tax year.8GovInfo. 26 CFR 1.404(b)-1T – Deduction Limitation for Deferred Compensation For a calendar-year company that means March 15. Miss it by a day and the deduction shifts to the tax year when the employee actually receives payment. On a $500,000 bonus pool, the timing difference can represent over $100,000 in deferred tax benefit.
The IRS has also ruled that for bonuses paid to a group of employees, the total minimum amount payable must be determinable by the end of the tax year, even if individual allocations are finalized later. You can still be working out who gets what, but the aggregate pool and formula need to be locked down by December 31.9Internal Revenue Service. Revenue Ruling 2011-29
Section 409A and the Short-Term Deferral Exception
Section 409A governs deferred compensation, and a bonus can accidentally fall under its rules if payment is delayed too long. The penalties land on the employee, not the company, but the retention fallout still hurts the employer.
A bonus avoids 409A entirely if it qualifies for the “short-term deferral” exception: paid by March 15 of the calendar year following the year in which the employee’s right to the bonus is no longer contingent on future service. For a typical annual performance bonus requiring employment through December 31, that deadline is March 15 of the following year. It mirrors the tax deduction deadline, so missing March 15 can trigger both problems at once.
A bonus that fails the short-term deferral exception and doesn’t comply with 409A’s strict timing and payment rules hits the employee with three penalties: immediate income inclusion when the bonus vests rather than when it’s paid, a 20% additional tax on the deferred amount, and an interest charge at the underpayment rate plus one percentage point.10Office of the Law Revision Counsel. 26 USC 409A – Inclusion in Gross Income of Deferred Compensation Under Nonqualified Deferred Compensation Plans A $50,000 bonus caught by 409A can easily cost the employee an additional $10,000 or more.
Practical takeaway: pay bonuses before March 15. If the business needs to defer beyond that point, structure the arrangement to comply with 409A’s election, timing, and documentation requirements from the start. Retrofitting compliance later isn’t permitted.
FLSA Overtime on Non-Discretionary Bonuses
Under the Fair Labor Standards Act, non-discretionary bonuses paid to non-exempt employees must be included in the “regular rate” used to calculate overtime.11U.S. Department of Labor. Fact Sheet 56C: Bonuses Under the Fair Labor Standards Act (FLSA) The overtime rate for every overtime hour during the bonus period has to be recalculated.
Only truly discretionary bonuses are excluded from the regular rate. A bonus qualifies for exclusion only when both the decision to pay and the amount are determined at the employer’s sole discretion at or near the end of the period, with no prior commitment.12Office of the Law Revision Counsel. 29 USC 207 – Maximum Hours Attendance bonuses, production bonuses, and bonuses announced in advance to drive performance are all non-discretionary and must factor into overtime.1eCFR. 29 CFR 778.211 – Discretionary Bonuses
The math: divide the bonus by total hours worked during the bonus period for the per-hour increase in the regular rate, then multiply by 0.5 times the overtime hours in that period. A $1,200 quarterly bonus for an employee who worked 520 total hours including 40 overtime hours adds roughly $2.31 per hour to the regular rate ($1,200 ÷ 520), requiring an additional $46.15 in overtime pay ($2.31 × 0.5 × 40). Accrue the additional overtime cost in the same period as the bonus expense.
Deposit Thresholds and Form 941
Large bonus payments can trigger accelerated deposit requirements. If accumulated tax liability reaches $100,000 or more on any day, you must deposit by the next business day, regardless of your normal monthly or semiweekly schedule.2Internal Revenue Service. Publication 15 (2026), (Circular E), Employer’s Tax Guide A $400,000 year-end bonus pool can easily cross this line once withholdings and employer-side taxes are combined. Missing a next-day deposit triggers penalties that compound quickly.
Bonus-related taxes go on Form 941 alongside regular quarterly payroll taxes. Federal income tax withheld from bonuses is included on Line 3, and wages subject to Social Security and Medicare (including bonuses) are reported on Lines 5a and 5c respectively.13Internal Revenue Service. Instructions for Form 941 There’s no separate line for supplemental wages. Bonus amounts flow into the same totals as regular compensation, which means quarterly reconciliation needs to account for bonus payment timing, especially when payments straddle quarter boundaries.
State income tax withholding on bonuses varies. Some states allow a flat supplemental rate; others require the same method as regular pay. Check your state’s employer tax guide, because the wrong method can produce under-withholding penalties assessed against the employer.